Alarm clock



FIG. 1 is a top view of the claimed invention.

FIG. 2 is a left view of the claimed invention.

FIG. 3 is a right view of the claimed invention; and,

FIG. 4 is a front view of the claimed invention.

The bottom and back views of the claimed invention are unornamented. 

I claimed the ornamental design for an alarm clock, as shown and described. 